Multi-criteria selection of the radar data compression method


Аuthors

Polyakov V. B.1*, Ignatova N. A.2**, Sentsov A. A.1***, Ivanov S. A.3****

1. Saint Petersburg State University of Aerospace Instrumentation, 67, Bolshaya Morskaya str., Saint Petersburg, 190000, Russia
2. Flight Research Institute, 2A, Garnaeva str., Zhukovsky, Moscow region, 140182, Russia
3. Saint-Petersburg State University of Economics, 21, Sadovaya str., Saint-Petersburg, 191023, Russia

*e-mail: vadim7702@yandex.ru
**e-mail: ignatalja@gmail.com
***e-mail: toxx@list.ru
****e-mail: kabalustuk@mail.ru

Abstract

Currently, the production of unmanned aerial vehicles has become a widespread and economically justified direction due to the significantly lower cost of creation and operation compared to manned ones with equal efficiency of the tasks performed. The large number of tasks performed, the availability of control and/or autonomy equipment on board, and the limited flight time lead to strict requirements for payload weight for on-board equipment. During the execution of flight missions, it is necessary to accumulate and / or relay the received data within 24-40 hours, and therefore the task of compressing radar data in unmanned complexes is in demand and relevant. Also, the need to compress radar data currently arises during the modernization of aircraft equipped with modern high-resolution radar stations capable of being in flight for a long time, which is associated with the need to register and store a voluminous data stream. The desired method should not only solve the problem of long-term recording in a limited amount of memory, provide the necessary compression ratio and loss level, but also take into account the peculiarities of radar data. The methods of compression of radar images are considered, the requirements for the method of compression of radar images in on-board devices used to increase the speed of recording a volumetric data stream and relaying the received radar information are determined. An algorithm for mathematical calculations of the prioritization method for choosing an effective solution from a set is presented.  A multi-criteria selection of the radar data compression method was made using the algorithm for calculating the effectiveness of the application and the prioritization method.

Keywords:

radar data, methods of radar information compression, multi-criteria selection method, image compression algorithms, radar images

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